2026-02-26 13:35:38 +08:00
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<?php
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/**
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* 文件功能:聊天室发言请求验证器
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*
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* @author ChatRoom Laravel
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*
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* @version 1.0.0
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*/
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namespace App\Http\Requests;
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use Illuminate\Contracts\Validation\Validator;
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use Illuminate\Foundation\Http\FormRequest;
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use Illuminate\Http\Exceptions\HttpResponseException;
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2026-04-12 14:04:18 +08:00
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/**
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* 聊天室发言请求验证器
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* 负责统一校验文本消息与图片消息的发送参数。
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*/
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class SendMessageRequest extends FormRequest
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{
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/**
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* 判断当前请求是否允许继续。
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*/
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public function authorize(): bool
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{
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return true; // 权限验证已交由中间件处理
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}
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/**
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* 返回发言请求的校验规则。
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*
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* @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<int, mixed>|string>
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*/
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public function rules(): array
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{
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return [
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'content' => ['nullable', 'required_without:image', 'string', 'max:500'], // 文本与图片至少二选一
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'image' => ['nullable', 'required_without:content', 'file', 'image', 'mimes:jpeg,png,jpg,gif,webp', 'max:6144'],
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'to_user' => ['nullable', 'string', 'max:50'],
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'is_secret' => ['nullable', 'boolean'],
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'font_color' => ['nullable', 'string', 'max:10'], // html color hex
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'action' => ['nullable', 'string', 'max:50'], // 动作(例如:微笑着说)
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];
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}
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/**
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* 返回校验失败时的中文提示。
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*/
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public function messages(): array
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{
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return [
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'content.required_without' => '文字内容和图片至少要发送一项。',
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'content.max' => '发言内容不能超过 500 个字符。',
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'image.required_without' => '文字内容和图片至少要发送一项。',
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'image.image' => '上传的文件必须是图片。',
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'image.mimes' => '仅支持 jpg、jpeg、png、gif、webp 图片格式。',
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'image.max' => '图片大小不能超过 6MB。',
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];
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}
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/**
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* 重写验证失败的处理,无论如何(就算未按 ajax 标准提交)都必须抛出 JSON,不可以触发网页重定向去走 GET 请求而引发 302 方法错误
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*/
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protected function failedValidation(Validator $validator): void
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{
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throw new HttpResponseException(response()->json([
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'status' => 'error',
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'message' => $validator->errors()->first(),
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'errors' => $validator->errors(),
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], 422));
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}
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}
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